AgentCrush

{
  "protocolVersion": "0.3.0",
  "name": "AgentCrush",
  "description": "Protocol-neutral market intelligence for the AI agent economy. Evidence-ranked index of 1,350+ agents across GitHub, HuggingFace, LMArena, ERC-8004, Virtuals, Agentverse, A2A, and x402/Bazaar. Ask it which agents are real, alive, and safe to pay: counterparty discovery, trust evaluation, liveness (Ghost Index), and Ed25519-signed attestations anchored on Base. Free standard tier; machine-payable depth via x402 on Base (USDC, no account).",
  "url": "https://agentcrush.xyz/api/a2a/v1",
  "preferredTransport": "JSONRPC",
  "additionalInterfaces": [
    {
      "url": "https://agentcrush.xyz/api/a2a/v1",
      "transport": "JSONRPC"
    },
    {
      "url": "https://agentcrush.xyz/api/mcp/v1",
      "transport": "HTTP+JSON",
      "note": "MCP server, 14 tools, free, no auth"
    }
  ],
  "provider": {
    "organization": "AgentCrush",
    "url": "https://agentcrush.xyz"
  },
  "version": "1.0.0",
  "documentationUrl": "https://agentcrush.xyz/developers",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "securitySchemes": {},
  "security": [],
  "defaultInputModes": [
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "skills": [
    {
      "id": "find_agents",
      "name": "Find payable counterparty agents",
      "description": "Counterparty discovery: which agents can do X and are safe to pay. Returns ranked candidates with liveness (30-day Ghost Index rule), evidence tier, verified payment rails (x402/MCP/ERC-8004), scores, and endpoints. Top 3 free via this A2A endpoint or GET /api/agents/find; full ranked list (up to 50) is $0.05 via x402 at /api/agents/find/full or free with an AgentCrush Pro key.",
      "tags": [
        "discovery",
        "counterparty",
        "trust",
        "x402",
        "kya"
      ],
      "examples": [
        "find wallet risk scoring",
        "find trading agents"
      ],
      "inputModes": [
        "text/plain"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "trust_eval",
      "name": "Trust evaluation",
      "description": "Trust verdict for one indexed agent: verdict, confidence tier, liveness, risk flags, claim status. Standard depth free; full depth with raw signal breakdown is $0.10 via x402 at /api/trust/evaluate/full.",
      "tags": [
        "trust",
        "verification",
        "risk",
        "kya"
      ],
      "examples": [
        "trust crewai",
        "trust autogpt"
      ],
      "inputModes": [
        "text/plain"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "ghost_index",
      "name": "Ghost Index (agent-economy liveness)",
      "description": "What share of indexed AI agents shows signs of life. Daily snapshot, free, CORS-open, history available. The base-rate every agent-economy decision should price in.",
      "tags": [
        "liveness",
        "market-intelligence",
        "analytics"
      ],
      "examples": [
        "ghost index"
      ],
      "inputModes": [
        "text/plain"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "attest",
      "name": "Signed attestations (oracle)",
      "description": "Ed25519-signed, timestamped statement over index data (agent liveness, tier, Ghost Index), referencing the daily Proof-of-Index digest anchored on Base. Built for prediction-market resolution and counterparty checks. $0.25 via x402 at GET /api/oracle/attest, free with a Pro key. Verification cookbook: https://agentcrush.xyz/oracle",
      "tags": [
        "oracle",
        "attestation",
        "resolution",
        "onchain"
      ],
      "examples": [
        "GET /api/oracle/attest?metric=liveness&handle=crewai"
      ],
      "inputModes": [
        "text/plain"
      ],
      "outputModes": [
        "application/json"
      ]
    }
  ]
}